3 years ago

An elements atomic number is 79. How many protrons would an atom of this element have?

Physics

1 answer:

Andrews [41]3 years ago

6 0

9 thats you electron number and what makes up 9 is 3

You might be interested in

A 1.0-kilogram object moving east with a velocity of 10 meters per second collides with a 0.50-kilogram object that is at rest.

NeTakaya

Answer:

10kg m/s

Explanation:

We can use the conversation of momentum for this question. Essentially the momentum before and after the crash will remain the same. We can use the formula P = mv to solve.

P = 1 * 10

P = 10kg m/s

Best of Luck!

3 0

3 years ago

Lemonade powder is stirred into water until it dissolves. Which are true statements?

ASHA 777 [7]

Also B. Water is the solvent is correct

6 0

3 years ago

Scientific notation and graphing <br><br> 0.0004580 to scientific notation

Vlada [557]

Scientific Notation: 4.580 x 10^-4

Scientific e Notation: 4.580e-4

4 0

3 years ago

Read 2 more answers

A double-slit experiment is set up using red light (λ = 706 nm). A first order bright fringe is seen at a given location on a sc

Elanso [62]

Answer:

λ = 470.66 nm

Explanation:

for bright fringe $y_m = \frac{m\lambda D}{d}$

D= distance between slit and screen

d= distance between the slits

for first order bright fringe m = 1,

$y_1 = \frac{1\lambda D}{d}$

$y_1 = {706*D}{d}$

for dark fringe,we have

$y_m = {(m + 1/2)\lambda D}{d}$

Now to get the dark fringes at the same location we should have;

(706)D/d = (m + 1/2)λD/d

put m = 1

(1 + 1/2)λ = (706)

λ = 470.66 nm

6 0

4 years ago

Which system works with the respiratory system for the exchange of gases to take place?

4vir4ik [10]

Yep it is. Defiantly the circulatory system

6 0

3 years ago